Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: Observations on the apparent rhythmic response cycle of the marine gastropod, Littorina planaxis on the central California rocky intertidal
Student Author(s): Brumm, Christi
Faculty Advisor(s): Phillips, John
Pages: 17
Location: Final Papers Biology 175H
Date: June 1978
Keywords: biological rhythms in marine and maritime organisms
Abstract: When Littorina planaxis is suddenly immersed in sea water by wave action, it responds by opening its operculum, extending its foot and attaching to the substratum. Preliminary studies revealed variation in the time required for this response. This study was undertaken to determine the relationship of response time to phases of the tidal and diurnal cycles.